Wow ... quite a story. What was the key disenchantment with the Pentax gear?

I couldn't find a lens that would work like I wanted for big bugs like the 50-200 does. Everything with Pentax hinged on the Tamron 70-200/2.8 working well (because of its 1:3 magnification). Well, after three lenses and two K-5 bodies I still had AF issues.

The K-5 was an awesome camera, loved it. But as weall know...Oly lenses are the best

That was my only issue, otherwise, and for everything other than one narrow requirement the Pentax kit was great.